<?php

namespace App\Console\Commands;

use App\Models\Setting;
use App\Models\UserBusinessStructure;
use App\Models\UserBusiness;
use Illuminate\Console\Command;
use App\Cron\BusinessUsersStoreOptimized;
use App\Cron\UserLevelUpdate;
use App\Cron\UserPaymentCredits;

class BusinessStoreOptimized extends Command
{
    /**
     * ln -sfv /usr/bin/php73 /usr/bin/php
     *  php artisan business:store-optimized month year
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'business:store-optimized {month} {year} {--clear : Clear stored data before processing}';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Create Business Structure and UserDetails with optimized performance and monitoring';

    private $timeStart;
    private $month;
    private $year;

    private $sendCreditMail = false;
    private $sendUpdateMail = false;

    /**
     * Create a new command instance.
     *
     * @return void
     */
    public function __construct()
    {
        parent::__construct();
    }

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {
        try {
            $executeDay = (int) Setting::getContentBySlug('day-exectute-business-structur');
            $presentDay = (int) date('d');

            $this->info('RUN Command BusinessStoreOptimized on Day: ' . $executeDay);
            $this->info('RUN Command BusinessStoreOptimized present Day: ' . $presentDay);
            \Log::channel('cron')->info('RUN Command BusinessStoreOptimized on Day: ' . $executeDay);
            \Log::channel('cron')->info('RUN Command BusinessStoreOptimized present Day: ' . $presentDay);
            $this->logMemoryUsage('Command Start');

            if ($executeDay !== $presentDay) {
                $this->info('NOT RUN Command BusinessStoreOptimized is not present Day: ' . $presentDay);
                \Log::channel('cron')->info('NOT RUN Command BusinessStoreOptimized is not present Day: ' . $presentDay);
                return 0;
            }

            $this->timeStart = microtime(true);

            // Argumente mit Standardwerten für den Vormonat
            $this->month = $this->argument('month') ?: (int) date("m", strtotime("-1 month"));
            $this->year = $this->argument('year') ?: (int) date("Y", strtotime("-1 month"));

            $this->info('RUN Command BusinessStoreOptimized on month: ' . $this->month . ' | year: ' . $this->year);
            $this->logMemoryUsage('Parameters initialized');

            // Prüfe --clear Option und lösche gespeicherte Daten falls gewünscht
            if ($this->option('clear')) {
                $this->executeWithErrorHandling('Clear Stored Data', function () {
                    $this->clearStoredData();
                });
            }

            // Prozesse ausführen mit optimierter Fehlerbehandlung
            $this->executeWithErrorHandling('Business Structure Storage', function () {
                \Log::channel('cron')->info('RUN Command BusinessStoreOptimized Business Structure Storage');
                $this->storeBusinessStructureUsersDetailMonth();
            });

            $this->executeWithErrorHandling('Commission Calculation', function () {
                \Log::channel('cron')->info('RUN Command BusinessStoreOptimized Commission Calculation');
                $this->userBusinessCommissionsToCredit();
            });

            // Auskommentierte Prozesse bleiben inaktiv
            // $this->userCreatePaymentCreditsPDF();
            // $this->userLevelUpdate();
            // $this->storeBusinessStructureUsersDetailPeriod(1, 6);

            $this->logExecutionTime('COMMAND COMPLETED SUCCESSFULLY');
            $this->logMemoryUsage('Command End');
            \Log::channel('cron')->info('COMMAND COMPLETED SUCCESSFULLY');

            return 0;
        } catch (\Exception $e) {
            $this->error('Command failed with error: ' . $e->getMessage());
            $this->error('Stack trace: ' . $e->getTraceAsString());
            $this->logExecutionTime('COMMAND FAILED');
            \Log::channel('cron')->info('COMMAND FAILED');
            return 1;
        }
    }

    private function storeBusinessStructureUsersDetailMonth()
    {
        $this->info('storeBusinessStructureUsersDetailMonth month: ' . $this->month . ' year:' . $this->year);

        try {
            $businessUsersStore = new BusinessUsersStoreOptimized($this->month, $this->year);
            $businessUsersStore->storeUserBusinessStructure();
            $businessUsersStore->storeBusinessUsersDetail();
            $bool = $businessUsersStore->storeBusinessCompleted();

            $this->logExecutionTime('END Command storeBusinessStructureUsersDetailMonth: ' . $bool);
        } catch (\Exception $e) {
            $this->error('Error in storeBusinessStructureUsersDetailMonth: ' . $e->getMessage());
            throw $e;
        }
    }

    private function userBusinessCommissionsToCredit()
    {
        $this->info('userBusinessCommissionsToCredit month: ' . $this->month . ' year:' . $this->year);

        try {
            $userPaymentCredits = new UserPaymentCredits($this->month, $this->year);
            $userBusinesses = $userPaymentCredits->getUserBusinessByMonthYear();

            $processedCount = 0;
            foreach ($userBusinesses as $userBusiness) {
                $ret = $userPaymentCredits->addUserCreditItem($userBusiness);
                $this->info('userBusinessCredit: ' . $ret->user_id . ' : Team: ' . $ret->commission_pp_total . ' | Shop: ' . $ret->commission_shop_sales);
                $processedCount++;

                // Memory-Check alle 100 User
                if ($processedCount % 100 === 0) {
                    $this->logMemoryUsage("After processing {$processedCount} users");
                }
            }

            $this->info("Processed {$processedCount} user businesses total");
            $this->logExecutionTime('END Command userBusinessCommissionsToCredit:');
        } catch (\Exception $e) {
            $this->error('Error in userBusinessCommissionsToCredit: ' . $e->getMessage());
            throw $e;
        }
    }

    private function userCreatePaymentCreditsPDF()
    {
        $this->info('userCreatePaymentCreditsPDF month: ' . $this->month . ' year:' . $this->year);

        try {
            $userPaymentCredits = new UserPaymentCredits($this->month, $this->year);
            $creditItemUsers = $userPaymentCredits->getUserCreditItemUsersByMonthYear();

            $processedCount = 0;
            foreach ($creditItemUsers as $creditItemUser) {
                $bool = $userPaymentCredits->makeCreditPaymentPDF($creditItemUser->user_id, $this->sendCreditMail);
                $this->info('creditsPDF: ' . $bool . ' user_id: ' . $creditItemUser->user_id);
                $processedCount++;

                // Memory-Check alle 50 PDFs
                if ($processedCount % 50 === 0) {
                    $this->logMemoryUsage("After processing {$processedCount} PDFs");
                }
            }

            $this->info("Created {$processedCount} PDF files total");
            $this->logExecutionTime('END Command userCreatePaymentCreditsPDF:');
        } catch (\Exception $e) {
            $this->error('Error in userCreatePaymentCreditsPDF: ' . $e->getMessage());
            throw $e;
        }
    }

    private function userLevelUpdate()
    {
        $this->info('userLevelUpdate month: ' . $this->month . ' year:' . $this->year);

        try {
            $userLevelUpdate = new UserLevelUpdate($this->month, $this->year);
            $levelUpdateUsers = $userLevelUpdate->getUserBusinessByMonthYear();

            $updatedCount = 0;
            foreach ($levelUpdateUsers as $userBusiness) {
                $ret = $userLevelUpdate->makeUserLevelUpdate($userBusiness, $this->sendUpdateMail);
                if ($ret) {
                    $this->info('updateLevel: ' . $userBusiness->user->id . ' | ' . $userBusiness->user->email . ' | ' .
                        'from: ' . $userBusiness->m_level_id . ' ' . $userBusiness->user_level_name . ' | ' .
                        'to: ' . $ret);
                    $updatedCount++;
                }
            }

            $this->info("Updated {$updatedCount} user levels total");
            $this->logExecutionTime('END Command userLevelUpdate:');
        } catch (\Exception $e) {
            $this->error('Error in userLevelUpdate: ' . $e->getMessage());
            throw $e;
        }
    }

    private function storeBusinessStructureUsersDetailPeriod($from, $to)
    {
        try {
            for ($i = $from; $i <= $to; $i++) {
                $this->info('Store Business Structure Users Detail month: ' . $i . ' year:' . $this->year);
                $this->logMemoryUsage("Before month {$i}");

                $businessUsersStore = new BusinessUsersStoreOptimized($i, $this->year);
                $businessUsersStore->storeUserBusinessStructure();
                $businessUsersStore->storeBusinessUsersDetail();
                $bool = $businessUsersStore->storeBusinessCompleted();

                $this->logExecutionTime('Period BusinessStore: ' . $bool);
                $this->logMemoryUsage("After month {$i}");
            }
        } catch (\Exception $e) {
            $this->error('Error in storeBusinessStructureUsersDetailPeriod: ' . $e->getMessage());
            throw $e;
        }
    }

    /**
     * Löscht gespeicherte Business Structure Daten für den angegebenen Monat/Jahr
     */
    private function clearStoredData()
    {
        try {
            $this->info("Clearing stored business data for month: {$this->month} | year: {$this->year}");

            // Finde bestehende UserBusinessStructure
            $existingStructure = UserBusinessStructure::where('year', $this->year)
                ->where('month', $this->month)
                ->first();

            if (!$existingStructure) {
                $this->info('No stored business structure found to clear');
                return;
            }

            $structureId = $existingStructure->id;
            $this->info("Found existing structure with ID: {$structureId}");

            // Lösche zugehörige UserBusiness Einträge
            $deletedUserBusinesses = UserBusiness::where('b_structure_id', $structureId)->count();
            if ($deletedUserBusinesses > 0) {
                UserBusiness::where('b_structure_id', $structureId)->delete();
                $this->info("Deleted {$deletedUserBusinesses} UserBusiness records");
            }

            // Lösche die UserBusinessStructure
            $existingStructure->delete();
            $this->info("Deleted UserBusinessStructure with ID: {$structureId}");

            // Garbage Collection nach dem Löschen
            gc_collect_cycles();

            $this->info('Successfully cleared all stored business data');
            $this->logMemoryUsage('After clearing data');
        } catch (\Exception $e) {
            $this->error('Error clearing stored data: ' . $e->getMessage());
            throw $e;
        }
    }

    private function logExecutionTime($message)
    {
        $diff = microtime(true) - $this->timeStart;
        $sec = intval($diff);
        $micro = $diff - $sec;

        $this->info($message . ' | Time: ' . $sec . 'sec :' . round($micro * 1000, 4) . " ms");
    }

    /**
     * Führt eine Funktion mit Fehlerbehandlung aus
     */
    private function executeWithErrorHandling(string $processName, callable $callback): void
    {
        try {
            $startTime = microtime(true);
            $this->info("Starting: {$processName}");
            $this->logMemoryUsage("Before {$processName}");

            $callback();

            $endTime = microtime(true);
            $duration = round(($endTime - $startTime) * 1000, 2);
            $this->info("Completed: {$processName} in {$duration}ms");
            $this->logMemoryUsage("After {$processName}");
        } catch (\Exception $e) {
            $this->error("Error in {$processName}: " . $e->getMessage());
            $this->error("Stack trace: " . $e->getTraceAsString());
            throw $e;
        }
    }

    /**
     * Loggt aktuelle Memory-Nutzung
     */
    private function logMemoryUsage(string $checkpoint): void
    {
        $currentMemory = memory_get_usage();
        $peakMemory = memory_get_peak_usage();
        $memoryLimit = $this->parseMemoryLimit(ini_get('memory_limit'));

        $currentFormatted = $this->formatBytes($currentMemory);
        $peakFormatted = $this->formatBytes($peakMemory);
        $limitFormatted = $this->formatBytes($memoryLimit);
        $usagePercent = round(($currentMemory / $memoryLimit) * 100, 2);

        $this->info("[{$checkpoint}] Memory: {$currentFormatted} / {$limitFormatted} ({$usagePercent}%) | Peak: {$peakFormatted}");

        if ($usagePercent > 80) {
            $this->warn("High memory usage detected at {$checkpoint}: {$usagePercent}%");
        }
    }

    /**
     * Konvertiert Memory-Limit String zu Bytes
     */
    private function parseMemoryLimit(string $limit): int
    {
        $limit = trim($limit);
        $last = strtolower($limit[strlen($limit) - 1]);
        $number = (int) $limit;

        switch ($last) {
            case 'g':
                $number *= 1024;
            case 'm':
                $number *= 1024;
            case 'k':
                $number *= 1024;
        }

        return $number;
    }

    /**
     * Formatiert Bytes in lesbare Einheiten
     */
    private function formatBytes(int $bytes, int $precision = 2): string
    {
        $units = array('B', 'KB', 'MB', 'GB', 'TB');

        for ($i = 0; $bytes > 1024 && $i < count($units) - 1; $i++) {
            $bytes /= 1024;
        }

        return round($bytes, $precision) . ' ' . $units[$i];
    }
}